out on one's feet
сбитый с толку
fassungslos, verblüfft, verdutzt
Standing erect but not consciously aware of one's surroundings, or only minimally…Standing erect but not consciously aware of one's surroundings, or only minimally aware, and having little or no ability to control one's bodily actions, as a result of physical injury or exhaustion.
Meaning
2 senses(idiomatic)Standing erect but not consciously aware of one's surroundings, or only minimally aware, and having little or no ability to control one's bodily actions, as a result of physical injury or exhaustion.
(broadly, idiomatic)Stupefied; dazed; nonfunctional.
Origin
From the sport of boxing, referring to fighter who is too stunned to fight effectively, buFrom the sport of boxing, referring to fighter who is too stunned to fight effectively, but who does not collapse to the canvas.
Wiktionary, CC BY-SA 4.0 · source
Synonyms
4 synonymsstanding erect but not consciously aware or only minimally aware due to injury or exhaustion:out of itpunch drunk
stupefied, dazed, nonfunctional:bewilderedincapacitated